Feat: custom signed entity types in backward compatibility test in CI#2087

jpraynaud merged 2 commits intomaininput-output-hk/mithril:mainfrom

jpraynaud/2027-custom-signed-entity-types-nightly-backward-compatibilityinput-output-hk/mithril:jpraynaud/2027-custom-signed-entity-types-nightly-backward-compatibilityCopy head branch name to clipboard